code: def test_latest_models(client):
      version_stage_mapping = (
          ("1", "Archived"),
          ("2", "Production"),
          ("3", "Archived"),
          ("4", "Production"),
          ("5", "Staging"),
          ("6", "Staging"),
          ("7", "None"),
      )
      name = "LatestVersionTest"
      client.create_registered_model(name)
  
      for version, stage in version_stage_mapping:
          # Sleep for unique creation_time to make search results deterministic
          time.sleep(0.001)
          mv = client.create_model_version(
              name, "runs:/run_id/model", "run_id"
          )
          assert mv.version == version
          if stage != "None":
              client.transition_model_version_stage(
                  name, version, stage=stage
              )
          mvd = client.get_model_version(name, version)
          assert mvd.current_stage == stage
  
      def get_latest(stages):
          latest = client.get_latest_versions(name, stages)
          return {mvd.current_stage: mvd.version for mvd in latest}
  
      assert get_latest(["None"]) == {"None": "7"}
      assert get_latest(["Staging"]) == {"Staging": "6"}
      assert get_latest(["None", "Staging"]) == {
          "None": "7",
          "Staging": "6",
      }
      assert get_latest(None) == {
          "Production": "4",
          "Staging": "6",
          "Archived": "3",
          "None": "7",
      }
      assert get_latest([]) == {
          "Production": "4",
          "Staging": "6",
          "Archived": "3",
          "None": "7",
      }
  
imports: import time
  import pytest
  from mlflow import MlflowClient
  from mlflow.entities.model_registry import ModelVersion, RegisteredModel
  from mlflow.exceptions import MlflowException
  from mlflow.utils.os import is_windows
  from mlflow.utils.time import get_current_time_millis
  from tests.tracking.integration_test_utils import _init_server
label_desc: Use image node_id 16 for calling a global function with example usage: test_latest_models(client) and returns: unknown